Answer :: 7
Explanation ::
Okay, I'm going to stretch this explanation long so people can understand! Hopefully this helps :) I will also provide a shorter explanation so if people want to find out how to do it quicker without details to help you understand better, they can read the shorter explanation!
- long explanation -
Equation provided from the info :: (x * 2) + 1 = 15
We need to find out what number is the x. First of all, one way to do it is do the equation backwards. And the operators will be the opposite too, for example addition is the opposite of subtraction and multiplication is the opposite of division. Now once we flip the equation it should look like this:
(15 - 1) / 2 = x
Let's break the equation apart so it's easier to work with. Remember, the rule PEMDAS. Parentheses, Exponents, Multiplication and Division, Addition and Subtraction. Why I put "and" between some words, is because they are the same level and you should go left to right from the equation. So the equation in parentheses is (15 - 1). So we just have to solve it! The answer is 14, which is an even number, so we don't have to fiddle with decimals. But if you want to know how to divide an odd natural number, feel free to comment on this answer! The equation should look like this:
14 / 2 = x
Now, all we have to do now is divide 14 in half! As someone who memorised their whole multiplication and division table, it's easy for me to figure it out. But if you haven't, try using addition! All you have to do is count up your numbers.
1 + 1 = 2
2 + 2 = 4
3 + 3 = 6
4 + 4 = 8
5 + 5 = 10
6 + 6 = 12
7 + 7 = 14!
So now we know 14 / 2 is 7. Sorry if this is too easy, I'm just giving attention to some who learn slowly, which is absolutely alright! So now we have our 2 answers. The equation now looks like this:
14 / 2 = 7.
Well we now know what the x is, and if you want to make sure it's the correct answer just flip the equation!
(7 * 2) - 1
7 * 2 = 14
14 - 1 = 15
Your answer is the same one provided, so the number is 7!
- short explanation -
The equation with the numbers provided is (x * 2) + 1 = 15
Let's flip the equation so it's easier! It should look like this:
(15 - 1) / 2 = x
Now all we have to do is solve it!
15 - 1 = 14
14 / 2 = 7
So our answer is 7! To check if the answer is correct, just re-do the unflipped equation!
(7 x 2) + 1 = ??
7 x 2 = 14
14 + 1 = 15
15 is the answer given in the text, so 7 is the correct answer.
Jason needed to use 8 pounds 14 ounces of clay to make a bowl and twice as much to make a vase. If he had a 25 pound bag of clay available, did he have enough clay to make both items?
help! i will give brainliest!!!
What is the distance between the points (-4 , -11) and (-4 , 20) in the coordinate plane?
**NEED ANSWER NOW**
The scooter tire has a diameter of 32 cm. what is the circumference of the tire?
Michelle deposited $3,400 into an account. she made no additional withdrawals or deposits. michelle earned 1.95% annual simple interest on the money in the account. what was the total balance in her account at the end of 2.5 years? question 6 options: $165.75 $356.57 $3565.75 $1,657.50
[tex]~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$3400\\ r=rate\to 1.95\%\to \frac{1.95}{100}\dotfill &0.0195\\ t=years\dotfill &2.5 \end{cases} \\\\\\ A=3400[1+(0.0195)(2.5)]\implies A=3400(1.04875)\implies A=3565.75[/tex]
A water sample shows 0.073 grams of some trace element for every cubic centimeter
of water. Anthony uses a container in the shape of a right cylinder with a diameter of
11.4 cm and a height of 16.5 cm to collect a second sample, filling the container all the
way. Assuming the sample contains the same proportion of the trace element,
approximately how much trace element has Anthony collected? Round your answer
to the nearest tenth.
The amount of trace element has Anthony collected, assuming the sample contains the same proportion of the trace element, is 114.6 grams.
What is of volume of cylinder?Volume of cylinder is the amount of quantity, which is obtained by the solid or object in the 3 dimensional space.
The volume of cylinder can be given as,
[tex]V=\dfrac{\pi r^2h}{4}[/tex]
Here, (d) is the diameter of the base of the cylinder and (h) is the height of the cylinder.
A water sample shows 0.073 grams of some trace element for every cubic centimeter of water. The proportion of element with water is,
[tex]p=\dfrac{0.073}{1}[/tex]
Anthony uses a container in the shape of a right cylinder with a diameter of 11.4 cm and a height of 16.5 cm to collect a second sample, filling the container all the way.
The total volume of the container is,
[tex]V=\dfrac{\pi (11.4)^2\times16.5}{4}\\V\approx1684 \rm\; cm^3[/tex]
The sample contains the same proportion of the trace element. Let the trace element has Anthony collected is x. Thus,
[tex]\dfrac{x}{1684-x}=\dfrac{0.073}{1}\\x=122.932-0.073x\\x+0.073x=122.932\\x=\dfrac{122.932}{1.073}\\x\approx114.6\rm\; gram[/tex]
Thus, the amount of trace element has Anthony collected, assuming the sample contains the same proportion of the trace element, is 114.6 grams.
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y=mx+b (-6,-5) and (-4,-4)
Step-by-step explanation:
We will put this in y=mx +b form so first calculate the slope
m= (-4)-(-5)/(-4)-(-6)
m= 1/2. So y= x/2. +b
Now just substitute the x and y values of either given point to calculate b
I will use (-4,-4)
-4= (1/2)(-4) +b
-4= -2 +b
b=-2
So equation is y= x/2 -2
...................................
I search it.
Answer:
Step-by-step explanation:
Equation of line in slope- y intercept form:
First find the slope.
[tex]\boxed{Slope= \dfrac{y_2-y_1}{x_2-x_1}}[/tex]
[tex]\sf = \dfrac{-4-[-5]}{-4-[-6]}\\\\=\dfrac{-4+5}{-4+6}\\\\=\dfrac{1}{2}[/tex]
Equation:
[tex]y =\dfrac{1}{2}x+b[/tex]
Choose any point and substitute the x and y value in the above equation.
(-6,-5)
[tex]\sf -5=\dfrac{1}{2}*(-6) + b\\\\-5 = -3+b\\\\-5+3=b\\\\-2 = b[/tex]
Equation:
[tex]y = \dfrac{1}{2}x - 2[/tex]
You put a fence around the dog pen and fill it with gravel. The fence costs $1.75 per foot. One bag of gravel covers 8 square feet and costs $1.50. How much do you spend?
Answer: Ok so you do 8(1.75+1.50) and then times it by four since it’s a dog fence,I did this on calculator+ so that should be a good answer,the answer is 104
Step-by-step explanation:
A boat traveled 27 miles in 3 hours. At this rate how many mile will the boat travel in 1/2 hour?
[tex]\begin{array}{ccll} miles&hours\\ \cline{1-2} 27 & 3\\ x& \frac{1}{2} \end{array} \implies \cfrac{27}{x}=\cfrac{3}{~~ \frac{1}{2}~~}\implies \cfrac{27}{x}=6 \\\\\\ 27=6x\implies \cfrac{27}{6}=x\implies \cfrac{9}{2}=x\implies 4\frac{1}{2}=x[/tex]
If u could help with this I’d really appreciate it
Answer:
it reflection over the y axis not the x axis
Step-by-step explanation:
Write f(x)=|x-2| as a piecewise function.
Answer:
Hi! A piecewise function is a function defined by multiple sub-functions, or pieces of different functions over different intervals. Piecewise definition is a way of expressing the function and is not actually integral to the function itself.
f(x) = |x - 2| is an absolute value function. As a piecewise function, it's written like this:
f(x) = {x - 2, x ≥ 2
{-x + 2, x < 2
Hope this helps! Have a great day.
Hugh has $200 in his bank account. Hugh wrote six checks from his account in the following amounts: $20, $20, $12, $20, $12, and $42. He also made a deposit of $57 and was charged a $15 service fee by the bank. After all these transactions what was Hugh's balance?
The balance in Hugh's account after writing six checks, making one deposit and being charge with a service fee by the bank equals an amount of $ 116.
How to determine the balance of a bank account
Here in this question we should understand the situation like a game with the following rules for the account balance:
A check from the account means a subtraction of money.A deposit means an addition of money.Service fee means also a subtraction of money.After a careful reading, we apply the rules described above and have the following calculation:
x = $ 200 - $ 20 - $ 20 - $ 12 - $ 20 - $ 12 - $ 42 + $ 57 - $ 15
x = $ 116
The balance in Hugh's account after writing six checks, making one deposit and being charge with a service fee by the bank equals an amount of $ 116. [tex]\blacksquare[/tex]
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Find the area of the cylinder 14mm and 5mm
Answer: hope I helped look down
Step-by-step explanation:
h=A2πr﹣rr Radius A Surface area
The population of a bacteria colony doubles every 6 hours. For example, starting with a sample of 10 bacteria, after 6 hours there would be 20 bacteria and so on. After 12 hours there would be 40, and so on. Now consider a scientist who has collected a colony of 25 bacteria. Create an expression and approximate the number of bacteria after 3 hours.
Answer:
If the bacteria grow for six hours, each bacterium will divide 3 times per hour × 6 hours = 18 times.
Every time the bacteria reproduce, the number doubles.
PLEASE HELP ME WITH THESE TWO QUESTIONS ITS DUE IN FEW MINS
apparently my answer contains inappropriate words so here's a picture
A figure is made up of a white triangle and black rectangle. The triangle has a height of 3 inches and a base of 6 inches. The rectangle has a length of four inches inches. What is the area of the black part of the figure?
Answer:
72
Step-by-step explanation:
first multiply 6 times 3 = 18 then do 18 times 4 which equals 72 all together
Anyone know how to do this? Help please!
Answer: 40
Step-by-step explanation: The angle on the straight line is 180, you have 140 the other angle is 180-40. It is also equal to the alternate angle shown
Write an equation for each graph:
Answer:
[tex]y=-|x+1|+1[/tex]
Step-by-step explanation:
Parent function: [tex]y=|x|[/tex]
Reflect in the x-axis: [tex]y=-|x|[/tex]
Translate 1 unit to the left: [tex]y=-|x+1|[/tex]
Translate 1 unit up: [tex]y=-|x+1|+1[/tex]
Please refer to the attachments to see the individual transformations.
I need help asp please!!!
Answer:
Option B, [tex]516.3\ units[/tex]
Step-by-step explanation:
Step 1: Determine the area of the back
[tex]A = l * w[/tex]
[tex]A = 10\ units * 13\ units[/tex]
[tex]A = 130\ units^2[/tex]
Step 2: Determine the hypotenuse
Pythagorean theorem → [tex]a^2 + b^2 = c^2[/tex]
[tex](10-6)^2\ units + 7^2\ units = c^2[/tex]
[tex]4^2\ units + 7^2\ units=c^2[/tex]
[tex]16\ units+49\ units=c^2[/tex]
[tex]\sqrt{65}=\sqrt{c^2}[/tex]
[tex]8.06 = c[/tex]
Step 3: Determine the area of the top
[tex]A = l * w[/tex]
[tex]A = 13\ units * 8.06\ units[/tex]
[tex]A = 104.81\ units^2[/tex]
Step 4: Determine the area of the front
[tex]A = l * w[/tex]
[tex]A = 13\ units * 6\ units[/tex]
[tex]A = 78\ units^2[/tex]
Step 5: Determine the area of the bottom
[tex]A = l * w[/tex]
[tex]A = 13\ units * 7\ units[/tex]
[tex]A = 91\ units^2[/tex]
Step 6: Determine the area of the trapezoid
[tex]A = \frac{a + b}{2} * h[/tex]
[tex]A = \frac{10\ units\ +\ 6\ units}{2}*7\ units[/tex]
[tex]A = 8\ units*7\ units[/tex]
[tex]A = 56\ units^2[/tex]
Step 7: Determine the total surface area
[tex]130\ units^2 + 104.81\ units^2 + 78\ units^2 + 91\ units^2 + 2(56\ units^2)[/tex]
[tex]515.81\ units^2[/tex]
Answer: Option B, [tex]516.3\ units[/tex]
A flagpole is 48 feet tall.
A 50-foot-long support
wire connects the top
of the flagpole to a
stake in the ground.
How far from the base
of the flagpole is the
stake?
Root 50^2 - 48^2 = 14ft
The distance of the base is 14ft
Hope this helps!
What is the measure of anglec to the nearest whole degree? 70° 77° 80° 85°
Applying the cosine ratio, the measure of angle C in the given image, to the nearest whole degree, is: 77°.
What is the Cosine Ratio?The cosine ratio is given as, cos ∅ = adjacent side/hypotenuse side of a right triangle.
Using the cosine ratio, we have:
cos C = 2/9
C = cos^(-1)(2/9)
C ≈ 77 degrees.
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Answer:
77 is the answer
Step-by-step explanation:
What is the area of the shaded region below?
Answer:
Step-by-step explanation:
Remark
The triangle with the shaded region makes exactly 1/4 of the entire circle. So the plan is to find the area of the circle and divide by 4. That gives you the area of the triangle and the shaded region. Then you find the area of the triangle and subtract it from what you just found.
Area of the circle
Area of the circle = pi * r^2
r = 12 cm
pi = 3.14
Area of the circle = 3.14 * 12^2
Area of the circle = 3.14 * 144
Area of the circle = 452.16 cm^2
Area of 1/4 of the circle
Area of 1/4 of the circle = (1/4)*452.16
Area of 1/4 of the circle = 113.04
Area of the triangle
b = r
h = r
b = 12 cm
h = 12 cm
Area = 1/2 b * h
area = 1/2 * 12 * 12
area = 72
Area of the shaded part
Shaded part = area of 1/4 of the circle - area of triangle
Area shaded part = 113.04 - 72 = 41.04
Answer area of shaded part = 41.04
4x^2+10=11
solve equation using the square roots method
Answer:
x = 1/2, −1/2
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Pablo sold liters of soda at a baseball game. How much is this in milliliters ?
Answer:
See below
Step-by-step explanation:
# liters x 1000 = ml sold
companies. After how many miles
are the total costs at the
OI two truck rental
two companies equal?
Company A:
Company B:
$20 per day plus $.70 per mile
$45 per day plus S .25 per mile
Set up the equation and solve for miles:
20 + 0.70m = 45 + 0.25m
Subtract 20 from both sides
0.70m = 25 + 0.25m
Subtract 0.25m from both sides
0.45m = 25
Divide both sides by 0.45
M = 55.56 miles
answer: 55.56 miles ( rounded to nearest hundredth’s)
Jason is considering two different jobs that he has been offered and he likes the atmosphere and
other employees equally at both companies.
With the first job he would be an apartment property manager for AMLI Company. This job is
offering Jason an hourly rate of $19. 00 an hour plus a weekly bonus of $40 for each new tenant he
sets a one year lease up with. The company expects Jason to work all 52 weeks of the year and 40
hours per week. He was told he could expect to set up an average of 5 lease agreements for each
week that he works.
With the second job he would work as water treatment facility manager in Gwinnett County. He
would be paid an annual salary of $46,000 a year, there are no bonuses by he gets a week off.
Both companies deduct for Social Security (6. 2%), Medicare (1. 2%), State Income Tax (3%), and
Federal Income Tax (14%).
AMLI's individual health insurance costs $115 per month. Gwinnett County's health insurance is
only $25 per month for an individual.
Part A: Determine how much Jason will receive in one year after all deductions have been taken
for each company. Show your work neatly.
The amount of money that Jason will receive in one year after all deductions have been taken for each company is $30,780.5 and $32562.
What is the final amount?With the first job, he would be an apartment property manager for AMLI Company.
This job is offering Jason an hourly rate of $19. 00 an hour plus a weekly bonus of $40 for each new tenant he sets a one-year lease-up with.
The company expects Jason to work all 52 weeks of the year and 40 hours per week.
He was told he could expect to set up an average of 5 lease agreements for each week that he works.
The amount after one year will be given by an equation
Let y be the amount, x be the number of hours in a week and z be the number of the week.
y = 19x + 40z
The total number of hours in a year will be
x = 2080
Then
y = 19 × 2080 + 40 × 52
y = $ 41,600
The amount after the deduction of Social Security (6. 2%), Medicare (1. 2%), State Income Tax (3%), and Federal Income Tax (14%) will be
→ 41,600 × 0.938 × 0.988 × 0.97 × 0.86
→ $ 32,160.5
The amount after the insurance will be
Amount = 32160.5 - 115 × 12
Amount = $ 30780.5
With the second job, he would work as a water treatment facility manager in Gwinnett County. He would be paid an annual salary of $46,000 a year, there are no bonuses and he gets a week off.
The amount after the deduction of Social Security (6. 2%), Medicare (1. 2%), State Income Tax (3%), and Federal Income Tax (14%) will be
→ 46,000 × 0.938 × 0.988 × 0.97 × 0.86
→ $ 35,562
The amount after the insurance will be
Let the number of the worker be 10. Then
Amount = 35,562 - 10 × 12 × 25
Amount = 35562 - 3000
Amount = $32562
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please help I am struggling I am in dire need of assistance.
Answer:
see below
Step-by-step explanation:
He forgot to multiply 'x' by '2' in the first step
It should be
4x-1 = 5 + 2 x
2x = 6
x = 3
The Rhythm Record Shop orders sixty-minute cassette tapes at $1.49 and CDs at $4.98. A total of 451
items were ordered and the total amount of the invoice is $1240.86. How many of each item were
ordered?
The number of sixty-minute cassette tapes ordered is 288 and the number of CDs ordered is 163.
What are the linear equations that represent this question?1.49a + 4.98b = $1240.86 equation 1
a + b = 451 equation 2
Where:
a = number of sixty-minute cassette tapes ordered b = number of CDs orderedHow many CDs were ordered?Multiply equation 2 by 1,49
1.49a + 1.49b = 671.99 equation 3
Subtract equation 3 from equation 1
568.87 = 3.49b
Divide both sides of the equation by 3.49
568.87 / 3.49
b = 163
How many sixty-minute cassette tapes were ordered ?Subract 163 deom 451
451- 163 = 288
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Due in 30 mins please help!!
Answer:
Step-by-step explanation:
1 > 1,2
2 > 5
3 > 0, 0, 5
4 > 0, 5
I used to the arrows to separate the numbers but that is really supposed to be the line dividing the the stem's and the leaves.
A teacher weighed 145 lbs in 1986 and weighs 190 lbs in 2007. What was the rate of change in weight?
Answer:
2.14 per year :)
Step-by-step explanation:
First we subtract :)
190 - 145 = 45
Now we divide :)
45/21 = 2.14
2.14 pounds per year
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